package com.example.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.example.common.R;
import com.example.dto.DishDto;
import com.example.dto.SetmealDto;
import com.example.etity.Category;
import com.example.etity.Dish;
import com.example.etity.Setmeal;
import com.example.etity.SetmealDish;
import com.example.service.CategoryService;
import com.example.service.SetmealDishService;
import com.example.service.SetmealService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;

/**
 * 套餐管理
 */
@RestController
@RequestMapping("/setmeal")
@Slf4j
public class SetmealController {
    @Autowired
    private SetmealDishService setmealDishService;
    @Autowired
    private SetmealService setmealService;

    @Autowired
    private CategoryService categoryService;


    @PostMapping
    @CacheEvict(value = "setmeal" ,allEntries = true)
    public R<String> save(@RequestBody SetmealDto setmealDto){
        setmealService.saveWithDish(setmealDto);
        return R.success("添加成功");
    }

    /**
     * 套餐信息分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name){
        log.info("page={}，pageSize={},name={}",page,pageSize,name);

        //构造分页构造器
        Page<Setmeal> pageInfo = new Page(page,pageSize);
        Page<SetmealDto> setmealDtoPage = new Page<>();

        //构造条件构造器
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.like(StringUtils.isNotEmpty(name), Setmeal::getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);
        //执行查询
        setmealService.page(pageInfo,queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo,setmealDtoPage,"records");

        List<Setmeal> records = pageInfo.getRecords();
        List<SetmealDto> list = records.stream().map((item)->{
            SetmealDto setmealDto = new SetmealDto();
            BeanUtils.copyProperties(item,setmealDto);
            Long categoryId = item.getCategoryId();//分类id
            Category category = categoryService.getById(categoryId);
            if (category!=null) {
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
            return setmealDto;
        }).collect(Collectors.toList());
        setmealDtoPage.setRecords(list);
        return R.success(setmealDtoPage);
    }


    /**
     * 删除套餐
     * @param ids
     * @return
     */
    @DeleteMapping
    @CacheEvict(value = "setmeal" ,allEntries = true)
    public R<String> delete(@RequestParam List<Long> ids){
        setmealService.removeWithDish(ids);
        return R.success("套餐数据删除成功");
    }

    @GetMapping("/list")
    @Cacheable(value = "setmeal",key = "#setmeal.categoryId + '_' + #setmeal.status")
    public R<List<Setmeal>> list(Setmeal setmeal){
        LambdaQueryWrapper<Setmeal> lambdaQueryWrapper = new LambdaQueryWrapper();
        lambdaQueryWrapper.eq(setmeal.getCategoryId()!=null,Setmeal::getCategoryId,setmeal.getCategoryId());
        lambdaQueryWrapper.eq(setmeal.getStatus()!=null,Setmeal::getStatus,setmeal.getStatus());
        lambdaQueryWrapper.orderByAsc(Setmeal::getUpdateTime);
        List<Setmeal> list = setmealService.list(lambdaQueryWrapper);
        return R.success(list);
    }
}
